Meiofauna, microflora and geochemical properties of the late quaternary (Holocene) core sediments in the Gulf of Izmir (Eastern Aegean Sea, Turkey)

Zeki Yümün*, Engin Meriç, Niyazi Avşar, Atike Nazik, İpek F. Barut, Baki Yokeş, Enis K. Sagular, Ayşegül Yildiz, Mustafa Eryilmaz, Erol Kam, Asiye Başsari, Bora Sonuvar, Feyza Dinçer, Kubilay Baykal, Seyhan Kaya

*Bu çalışma için yazışmadan sorumlu yazar

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7 Atıf (Scopus)

Özet

The Gulf of Izmir has seen the construction of marinas at four locations; Karşıyaka, Bayraklı, İnciraltı and Urla (Çeşmealtı). Six drilling holes have been structured for each location. Morphological abnormities observed in foraminifer tests, obtained from these core drillings, and coloring encountered in both foraminifer tests and ostracod carapeces, provide evidence of natural and unnatural environmental pollution. The objectives of this study are to identify micro and macro fauna, foraminifers in particular, contained within sediments in the above-mentioned locations; to investigate the background of pollution in the Gulf Region; and to determine pollution's impact upon benthic foraminifer and ostracods. Çeşmealtı foraminifera tests did not lead to color and morphological changes. But foraminifera tests samples collected from Karşıyaka, Bayraklı and İnciraltı led them to turn black (Plate 4–6). However, concentrations of heavy metals (Ni, Cr and Mn) obtained from the sediments of Karşıyaka, Bayraklı and İnciraltı locations are higher than those obtained from the Çeşmealtı samples and high concentrations of these elements may be the cause of the color change in the samples during the foraminifera tests. In Karşıyaka and Bayraklı ostracod samples, Bosquetina carinella, Pterygocythereis jonesi, Semicytherura species; in the Çeşmealtı/Urla zone, Cyprideis torosa; in İnciraltı, Pseudopsammocythere reniformis; and in four zones, Loxoconcha and Xestoleberis species were observed in the range of relative frequency. The same analyses were done on nannoplankton but they did not lead to color and morphological changes.

Orijinal dilİngilizce
Sayfa (başlangıç-bitiş)383-408
Sayfa sayısı26
DergiJournal of African Earth Sciences
Hacim124
DOI'lar
Yayın durumuYayınlandı - 1 Ara 2016
Harici olarak yayınlandıEvet

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Publisher Copyright:
© 2016 Elsevier Ltd

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